Class

Calcarea (Calcareous sponges)

Leucilla nuttingi. Photo: (c) Siena McKim, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

The calcareous sponges of class Calcarea are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made out of calcium carbonate in the form of calcite or aragonite. While the spicules in most species have three points, in some species they have either two or four points.

— Wikipedia

Subtaxa

Subclass: Calcaronea

Where in Humboldt

Discussion

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